Wood splitting and chopping machine



(N0 Model.) 2 Sheets-Sheet 1.

TOM PING CHEN.

WOOD SPLITTING AND GHOPPING MACHINE.

No. 375,122. Patented Dec. 20, 1887.

Witnesses:

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(No Model.) 2 Sheets-Sheet 2.

TOM PING CHEN.

WOOD SPLITTING AND SHOPPING MACHINE. 7

No. 375,122. Patented Dec. 20,- 1887.

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Witnesses:

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UNITED STATES PATENT OFFICE.

TOM PING CHEN, OF SAN FBANGISOO, CALIFORNIA.

\NOOD SPLITT ING AND CHOPPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 375,122, dated December20, 1887.

Application filed April 5, 1887. Serial No. 233,784. (No model.)

To aZZ whom, it may concern:

Be it known that I, TOM PING CHEN, a subject of the Emperor of China,residing at San Francisco, in the county of San Francisco and '5 Stateof California, have invented a new and useful Wood Splitting andChopping Machine, of which the following is a specification.

The object of my invention is to produce a machine so constructed thatthe blocks of '10 wood will be cut vertically into thin sheets, I and atthe same time these sheets split or cut transversely into small stripsor pieces, as kindling-wood, in a continuous manner.

To attain this end my invention consists in an upright frame withinwhich vertically-reciprocating knives carrying axes operate in guides orways upon both sides of the frame. To a main or sheet cutting blade ispivoted at right angles the transverse knives or splitting-axes, andbetween these axes are suspended wood-clearing arms or shovels workingin an automatic manner as the knifeframes are operated. A suitableclamping and feeding device is attached to the frame of the machine forholding and feeding the block of wood to the knives and axes, all ofwhich, together with the details of construction and operation, will behereinafter fully described.

In the accompanying drawings, which form part of this specification,Figure 1 represents a front elevation of my wood chopping and splittingmachine. Fig. 2 is an enlarged transverse vertical section of a part-ofthe machine. Fig. 3 is a plan or top View of the main 3 5 or sheetcutting blade and its frame,with outer plate removed to show portion oftransversely cutting or splitting blades or axes.

The main blade or sheet-cutting knife A is beveled outwardly and boltedor screwed to 0 the plate B, within an offset or rabbet at the lower endthereof, which latter is also beveled outwardly to conform to the bevelof the knife. The chisels or axes O, which split the sheets of woodtransversely into kindling- 5 wood, are pivoted to the plate B atsuitablelugs, as shown, and has no lateral vibration,

while the two adjacent ones, 0, are pivoted between the lugs a a, whichadmits of 7 side play or vibration as the knife-plate descends. Theblade of one ax is shown as socketed in Fig. 2, yet it will be evidentthat these axes can be formed with straight edges or without thesockets. A plate or shield, 13*, covers the upper portion of these axesand prevents splinters from entering and clogging the action thereof.These kuifeplates operate in guides of the upright frame, and arehinged, one at each side of the frame, to a cross or crank rod, D, theupper ends of which connect with the crank-pins D of the crank-wheels Dupon the pulley-shaft D and are operated in a reciprocating manneiyor sothat when one knifeplate is raised the opposite onewill descend, and soon alternately as the machine is operated by the belt-connection withthe fixed pulley E.

The feeding and clamping mechanism consists in a movable frame, H, forvertical adjustment operated by a hand-wheel upon the screw H whichraises or lowers the frame to the height or length of the block of woodto be cut. This frame carries a horizontal frame, I, moving indovetailed ways on the top of the frame H, and is provided with a dog,J, the point of which enters the top of the block and holds it firmlyagainst the outer lug or projection, H of the frame H. The dog isoperated by a rack and pinion, k, through the medium of the hand-wheel Kand the feeding of the block is accomplished by pushing the frameforward as the knife severs the block into sheets.

In order to clear away the wood or kindlings from the axes as fast asthe sheets are severed and split the clearing-shovels L are employed,and these are pivoted by a rod, L*, to the plate-frame B between eachset of axes. The upper end of this rod L connects with an arm, Lflwhiehlatter is bent around the crossrod of. the forked or crank arm D, asshown in Fig. 2, so that as the plate-frame carrying the knives israised these clearing-shovels will descend automatically and throwoutwardly or forward the split kindling-wood away from the machine in aregular and successive manner.

Having thus described my invention, what I claim, and desire to secureby Letters Patent,

1. In awood chopping and splitting machine provided with cutting bladesor axes, the clearing blades or shovels, and the movable knifecarryingframe, to which they are pivotally connected, said shovels being adaptedto push or clear away the severed wood from the knives or axes, in themanner specified. v

2. In a wood-chopping machine, the combinati0n,with the cutting devices,of a clamping and feeding mechanism, which consists in avertically-adjustable clamping-frame having screw and hand wheel foroperating the same,

and a horizontally-movable frame running in Ways on the clamping-frameand provided with dog, rack, and pinion, all vconstructed and arrangedas specified.

. 5 In testimony that I claim the foregoing I have hereunto set my handand seal.

TOM PING CHEN. n s.]

\Vitnes ses:

0. W. M. SMITH, GEO. T. KNOX.

